TDA7850 STMicroelectronics

TDA7850 4 x 50 W MOSFET quad bridge power amplifier Features High output power capability: 4 x 50 W/4 max. 4 x 30 W/4 14.4 V, 1 kHz, 10 % 4 x 80 W/2 max. 4 x 55 W/2 14.4V, 1 kHz, 10 % Flexiwatt25 MOSFET output power stage (Vertical) Excellent 2 driving capability Hi-Fi class distortion Low output noise ST-BY function Mute function Automute at min. supply voltage detection Low external component count: Flexiwatt25 Internally fixed gain (26 dB) (Horizontal) No external compensation No bootstrap capacitors On board 0.35 A high side driver ESD Protections: Description Output short circuit to gnd, to V , across the s load The TDA7850 is a breakthrough MOSFET Very inductive loads technology class AB audio power amplifier in Flexiwatt 25 package designed for high power car Overrating chip temperature with soft thermal radio. The fully complementary P-Channel/N- limiter Channel output structure allows a rail to rail Output DC offset detection output voltage swing which, combined with high Load dump voltage output current and minimized saturation losses sets new power references in the car-radio field, Fortuitous open gnd with unparalleled distortion performances. Reversed battery The TDA7850 integrates a DC offset detector. Table 1. Device summary Order code Package Packing TDA7850 Flexiwatt25 (Vertical) Tube TDA7850H Flexiwatt25 (Horizontal Tube September 2013 Rev 6 1/18 www.st.com 1Contents TDA7850 Contents 1 Block diagram and application circuit . 5 1.1 Block diagram . 5 1.2 Standard test and application circuit . 5 2 Pin description . 6 3 Electrical specifications 7 3.1 Absolute maximum ratings . 7 3.2 Thermal data . 7 3.3 Electrical characteristics . 8 3.4 Electrical characteristic curves . 11 4 Application hints . 14 4.1 SVR . 14 4.2 Input stage 14 4.3 Standby and muting . 14 4.4 DC offset detector 14 4.5 Heatsink definition 14 5 Package information 15 6 Revision history . 17 2/18